STK672-410C-E

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The STK672-410C-E is a three-phase inverter IC used for controlling stepper motor drive systems. This type of PMIC (Power Management IC) is among the most widely used motor drivers, controllers, and inverters in the industrial, automotive, and commercial markets. It features a wide operational voltage range, high speed, and efficient power-factor operation. In addition, the STK672-410C-E also offers a variety of protection features.

Application Field of STK672-410C-E

The STK672-410C-E is a three-phase brushless DC motor driver IC that is ideal for applications that require ultra-low power dissipation. It can be used in a wide range of motor control applications such as process control systems, medical devices, industrial automation, fans and pumps, and motorised toys. Its wide temperature range makes it suitable for applications in residential areas and those with frequent hot and cold temperature cycles. This IC is also suitable for use in aircraft and other vehicles because of its low EMI (Electromagnetic Interference) susceptibility.

Working Principle of STK672-410C-E

The STK672-410C-E features a three-phase inverter that is designed to control the inputs of three-phase brushless DC motors. It works by generating a three-phase sinusoidal signal from a DC voltage source. Each phase of this signal is then amplified and the appropriate commutation sequence is generated by the chip. This signal is then used to control the firing of the power transistors of the inverter, thus controlling the rotation direction and speed of the motor.

The STK672-410C-E also includes a variety of protection functions and control features. The IC has an over-voltage protection circuit that prevents excessive current flow, as well as a under-voltage protection circuit that prevents the motor from stopping due to low supply voltages. In addition, the IC also features a current limit circuit that limits the output current to a controlled level. This protection feature helps to prevent damage to the motor in case of a sudden overload.

The STK672-410C-E has two control inputs which can be used to adjust the motor speed, direction and torque. The first control input is used to give the motor direction commands, while the second input is used to adjust the speed and torque of the motor. The IC also has two output terminals which can be used to connect the motor’s power output to an external load.

Overall, the STK672-410C-E is a highly efficient and reliable three-phase inverter IC that is suitable for use in a wide range of motor control applications. It has a wide operational voltage range, high speed and efficient power factor, and offers a variety of protection features and control options.

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